PSL201Y1 Chapter Notes - Chapter 10: Posterior Grey Column, Cortical Column, Scotopic Vision
Document Summary
Receptors detect stimuli in the external environment visceral receptors. + chemoreceptors in major blood vessels that monitor o2, co2, and h+ levels in the blood. + baroreceptors in certain blood vessels that monitor blood pressure. + mechanoreceptors in the gastrointestinal tract that monitor the degree of stretch of distension. Sensory systems that enable us to perceive the external environment include the somatosensory system and the special system. + somatosensory system necessary for perception of sensations associated with receptors in the skin (somesthetic sensation. + proprioception, the perception of the position of the limbs and the body depends on specific proprioceptors in muscles and joints and on more generalized receptors in the skin. + special senses necessary for senses of vision, hearing, balance, and equilibrium, taste, and smell. Sensory receptors specialized neuronal structures that detect a specific form of energy in either the internal or external environment. + energy form of a stimulis modality.
